Hi,
We're developing a software allowing to interact in real time (including VR) with large point cloud (no limits) on standard configuration (with good graphics card).
We have our own algo and currently extending the scope to features as poincloud/mesh collision detection.
This is more detailed here: http://www.octarina.com/en/capture-3d-vr/
As we are still studying the market, we are open to discussion with peopel that may be interested in our technology.